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LLVM backend for 6502
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8ee1b65836
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Arnaud A. de Grandmaison 8ee1b65836 [PBQP] Cautiously update edge costs in the solver 
The NodeMetadata are maintained in an incremental way. When an edge between
2 nodes has its cost updated, in the course of graph reduction for example,
the NodeMetadata need first to have the old edge cost removed, then the new
edge cost added. Only once the NodeMetadata have been fully updated, it
becomes safe to consider promoting the nodes to the
ConservativelyAllocatable or OptimallyReducible sets. Previously, this
promotion was occuring right after the removing the old cost, and this was
breaking the assumption that a ConservativelyAllocatable should not be
spilled.

This patch also adds asserts to:
 - enforces the invariant that a node's reduction can not be downgraded,
 - only not provably allocatable or optimally reducible nodes can be spilled.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228816 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-11 08:25:36 +00:00
autoconf Fix some bashims. More information on https://wiki.ubuntu.com/DashAsBinSh. Reported initially on https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=772302 & https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=772301 2015-02-01 14:55:43 +00:00
bindings [OCaml] Add Llvm.build_empty_phi. 2015-02-06 13:42:03 +00:00
cmake Teach llvm_add_library() to find include dirs. 2015-02-10 05:04:37 +00:00
docs Don't promote asynch EH invokes of nounwind functions to calls 2015-02-11 01:23:16 +00:00
examples [Orc] Add a JITSymbol class to the Orc APIs, refactor APIs, update clients. 2015-02-09 01:20:51 +00:00
include [PBQP] Cautiously update edge costs in the solver 2015-02-11 08:25:36 +00:00
lib [PBQP] Cautiously update edge costs in the solver 2015-02-11 08:25:36 +00:00
projects [cmake] Use the external project machinery for libcxxabi so that it can 2014-07-25 10:27:40 +00:00
test Verifier: Make sure !llvm.ident's operand isn't null 2015-02-11 08:23:20 +00:00
tools Oops. Don't call Windows functions on non-windows. 2015-02-10 22:47:14 +00:00
unittests Fix warning due to unused private member variable. 2015-02-11 00:33:00 +00:00
utils [emacs] Get llvm-mode to font-lock "personality" 2015-02-09 00:30:03 +00:00
.arcconfig Updated phabricator server. 2014-04-07 03:57:04 +00:00
.clang-format Test commit. 2014-03-02 13:08:46 +00:00
.clang-tidy Enable display of compiler diagnostics in clang-tidy by default. 2014-10-29 17:29:38 +00:00
.gitignore Add one more vim swap file pattern 2015-01-30 21:59:28 +00:00
CMakeLists.txt Revert "Raising minimum required CMake version to 2.8.12.2." 2015-02-09 22:07:49 +00:00
CODE_OWNERS.TXT Assume code ownership for the PS4 to ensure patches get reviewed, per the Developer Policy. 2015-01-28 18:33:39 +00:00
configure Fix some bashims. More information on https://wiki.ubuntu.com/DashAsBinSh. Reported initially on https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=772302 & https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=772301 2015-02-01 14:55:43 +00:00
CREDITS.TXT Rise from the dead and update personal info 2014-08-25 17:51:04 +00:00
LICENSE.TXT Remove projects/sample. 2014-03-12 22:40:22 +00:00
llvm.spec.in
LLVMBuild.txt Remove the very substantial, largely unmaintained legacy PGO 2013-10-02 15:42:23 +00:00
Makefile [configure/make] Propagate names of build host tools when making BuildTools 2014-03-25 21:45:41 +00:00
Makefile.common
Makefile.config.in Add a check for misbehaving -Wcomment from gcc-4.7 and add 2014-11-05 00:35:15 +00:00
Makefile.rules Add a check for misbehaving -Wcomment from gcc-4.7 and add 2014-11-05 00:35:15 +00:00
README.txt Revert test commit 2015-02-04 18:46:00 +00:00

README.txt 

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